Facile template-free one-pot fabrication of TiO2@C microspheres with high visible-light photocatalytic degradation activity

다국어 초록 (Multilingual Abstract)

TiO2@C microspheres were fabricated through facile template-free one-pot hydrothermal reaction, inwhich ferrocene was first simultaneously used as carbon source and structure directing agent. Thecomposite obtained have been characterized by X-ray powder diffraction, field emission scanningelectron microscopy, diffuse reflectance spectroscopy, X-ray photoelectron spectroscopy, and nitrogenadsorption–desorption isotherms. The results show that the peripheries of the microspheres are stackedby several TiO2 particles. The band gap energy the as-prepared sample is estimated to be 2.26 eV. Allcarbon species in the composite are modified on the surface of the photocatalyst. The as-preparedTiO2@C microspheres exhibited higher visible-light photocatalytic activity for the degradation of organicpollutants (Congo red and 4-nitrophenol) than that of N-doped TiO2 catalyst. The OH radicals formed inthe process of photocatalytic degradation were also detected through fluorescence technique.

참고문헌 (Reference)

1 R. Ramakrishnan, 258 : 2515-, 2012

2 H. X. Guo, 239 : 192-, 2014

3 A. L. Linsebigler, 95 : 735-, 1995

4 M. Bagheri, 4 : 21757-, 2014

5 H. H. Xiao, 74 : 284-, 2016

6 C. X. Lei, 359 : 860-, 2015

7 L. H. Ai, 235 : 331-, 2014

8 X. B. Chen, 107 : 2891-, 2007

9 R. K. Wahi, 242 : 48-, 2005

10 S. Erdemog˘lu, 155 : 469-, 2008

11 J. H. Sun, 115 : 303-, 2009

12 H. X. Guo, 92 : 1278-, 2012

13 T. S. Natarajan, 50 : 7753-, 2011

14 N. Guo, 118 : 18343-, 2014

15 M. Atarod, 462 : 272-, 2016

16 S. Sakthivel, 42 : 4908-, 2003

17 X. X. Lin, 142 : 276-, 2011

18 J. H. Park, 6 : 24-, 2006

19 C. Xu, 64 : 312-, 2006

20 M. Shen, 60 : 693-, 2006

21 S. U. M. Khan, 297 : 2243-, 2002

22 Z. B. Wu, 20 : 235701-, 2009

23 G. Wu, 19 : 4530-, 2007

24 X. X. Yang, 52 : 296-, 2007

25 Y. Huang, 24 : 3510-, 2008

26 W. J. Ren, 69 : 138-, 2007

27 Y. Park, 91 : 355-, 2009

28 J. G. Yu, 249 : 59-, 2007

29 J. G. Yu, 17 : 1984-, 2007

30 H. Q. Wang, 113 : 13317-, 2009

31 J. D. Zhuang, 22 : 7036-, 2012

32 K. Lv, 356 : 78-, 2012

33 D. Y. Wu, 502 : 289-, 2010

34 P. S. Yuan, 47 : 2648-, 2009

35 X. C. Fu, 139 : 8-, 2011

36 Z. R. Suo, 206 : 1-, 2013

37 Dong Ri Zhang, "Synthesis of Sc and V-doped TiO2 nanoparticles and photodegradation of rhodamine-B" 한국공업화학회 19 (19): 1838-1844, 2013

38 백미화, "Preparation, characterization and photocatalytic activity evaluation of micro- and mesoporous TiO2/spherical activated carbon" 한국공업화학회 19 (19): 469-477, 2013

39 Mojtaba Safari, "Photocatalytic degradation of methyl tert-butyl ether (MTBE) by Fe-TiO2 nanoparticles" 한국공업화학회 19 (19): 1697-1702, 2013

40 Shabnam Shoabargh, "A hybrid photocatalytic and enzymatic process using glucose oxidase immobilized on TiO2/polyurethane for removal of a dye" 한국공업화학회 20 (20): 3150-3156, 2014